Water-meter.



G. URKEWITZ.

WATER METER.

APPLICATION ULEB PEB. 28.71913,

GHAnLEs UnKnwITz, or CAMBRIDGE, MAssacHUsE'r'rs.

WATER-METER.

Specification of Letters Patent.

Patented June 16, 1914.

Application filed February 28, ,1913. Serial No. 751,202.

To all whom it may concern.'

Be it known that I, @Harinas Unnnwirz, '1 Subject of the Czar 0f Russia, residing at Cambridge, .in .the county 0f. Middlesex and State of h lassachusetts, have invented neviT and useful Improvements in Water-Meters, of which the following is a specication.

rlhis invention relates to improvements in water meters and particularly to that class of meters known as the disk meter in which the disk gyrates about a center. In meters of this character the disks are usually provided with a spherical center which consti` tutes the pivot for said disk, said disk being inclosed .in a casing having concaved recesses adapted to engage and partially surround said spherical center portion. In this construction the contacting surfaces between said spherical center and the Walls of the recess which support said diskare arranged slightly below the surface of said casing over which the water has to pass and consequently any sand or sediment in said water will naturally be directed between said contacting surfaces to injure or roughen said surfaces and thereby greatly reduce the efficiency of the meter.

The object of this invention is to provide a meter of 4the class described 'having a bearin g arranged within the spherical center of the disk and sufficiently above the surface of the passage through which the water passes, to prevent the sand and sediment fronisaidwater from settling around and in contact therewith.

The invention consists in the combination and arrangement of parts whereby the above object and certain other objects hereinafter appearing are attained, as set forth in the following specification and particularly pointed out in the claims.

Referring to the drawings: Figure 1 is a sectional side elevation' of a vwater meter embodying my invention. F ig. 2 is a detail plan view of the measuring disk casing with portions of said casing broken away to show the inlet and' outlet orifices therefor.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, 4 is the casing of a water meter of a well known construction and therefore requiring but little description, suffice it to say said casing is provided with the usual chamber 5 having an inlet 6 and an outlet 7, said inlet 6 entering .said chamber' at one side while the outlet 7 1s connected therewith at the bottoni.

l The chamber 5 is separated or divided into tWo compartments by a disk casing 8 having an annular llange 9 which is an ranged to fit an annular recess 10 in said Casing 4- The inner ,Casing .8 Consists Preterably of three parts, the" spherical shaped side wall 11, the flat base l2 and the conical shaped top 13, all of said three parts together forming a Chamber 14 which ccntains the conical measuring disk 1 5.

The disk 15 is provided with a spherically formed center 16 which is adapted to engage or project into concavities 1( and 1 8 in the top and base respectively, said spherical portion constituting a partition Whereby the water passing into said chamber will be directed therearound. The spherical side wall is provided with the usual radial partition 19 which is adapted to project into a Slot 20 in. Seid disk, thus preventing said disk from rotating within said chamber.

The casing 8 is further provided with an inlet orifice 2l which is located upon one side of the partition 19 and an outlet orifice 22 located upon the opposite side and adjacent to said partition 20, theinlet orifice communicating directly with the portion of the chamber 5 above the annular flange 9, while the outlet orifice 22 communicates through a passage 23 with the lower p01'- tion of said chamber that is, the portion below the flange 9. i 4

The spherical member 16 of the disk l5 is recessed at 2i from the bottom face thereof upwardly to a oint substantially beyond the center there@ and ill said recess is located a ball 25 whose center is substantially coincident with the center of the spherical membr 1.6 or with the center of gyr-ation of said disk and is supported in said relation by a ball cup 26, said ball cup having a cylindrical stem 2T extending downwardly and secured within a boss formed in the base 12 by a screw 28.

A second ball cup 2 9 is mounted within the spherical member 1G and is adapted to rest upon said ball 25. This cup is also pr0 vided with a cylindrical stem 3() which is smaller in diameter than the ball cup 29 and has a shoulder 3l which engagesthe inner end of the recess 24. Said stem 30 ldd extends through said spherical member and y lmechanism of the registering train, said ,registering tram being constructed in a manner well known to those skilled inthe art and being therefore not shownwin the drawings.

There is preferably a'sliglit'cleairance provided between the bottm-"surfa`ce of the spherical center 16'and the adjacent face of Athejconcavity 18, consequently any sand or sediment which may be deposited by the water passing through said chamber 14 will be permitted` to pass therethrough without becoming lodged therebetween and thus interfere with the movements of said disk and considerable sand and sediment may collect around the stem 27 within the concavity 18 without interfering with the movements of said disk or without coming in contact with the ball 25.

In the operation of the device the water enters through the inlet 6 passing through the usual screen 35 into the upper portion -of the chamber 5 and thence through the inlet orifice 21 into the inner chamber 14. Assuming that the disk 15 is in the position illustrated in Fig. 1 the water is conducted into the chamber 14 through the inlet orice 21 beneath said disk and around the spherical central portion 16 thereof from whence it is discharged through the outlet orifice 22. As the water approaches the opposite side of the chamber 14 at which point the lower face of said disk is in contact with the upper face of the fiat base 12 the pressure of the water tends to lift said disk as it proceeds and gradually rolls the same about the flat upper face of the base 12. This movement causes what is known as the gyratory movement of said disk and of the stem 30 thereby imparting a rotary motion to the spindle 34 through the arm 33. As the water proceeds, entlrely encircling the central spherical member 16, it is finally discharged through the outlet orifice 22 and by the passage of said current of water beneath said disk said disk will be rocked as hereinbefore stated to cause the portion thereof adjacent to the inlet orice to move downwardly across said inlet orifice and thereby permit water-entering the same to pass above said disk and as said current passes around said central member between the upper face of said disk and the lower face of the conical top 13 the action of the disk will be identical with that hereinbefore described relatively to the water passing therebeneath, said water being inally discharged through the same outlet orifice. lBy the action of said disk in moving from the top of the inlet orice to the bottom causes a certain amount of water to be admitted at one or the other of the sides thereof which is measured or indicated by the mechanism connected with the spindle 34.

Having thus described my invention what I claim and desire by Letters Patent to secure is: y

1. A disk meter having, in combination, a gyratory measuring disk provided with a recessadjacent the center of gyration thereof, a pivot for said disk including a ball arranged Within said recess, the center of said ball being coincident with the center of gyration of said disk, and a pair of adjustable bearing members for said ball.

2. A disk meter having, in combination, a gyratory measuring disk comprising a spherical central member, a casing provided with recesses adapted to contain portions of said spherical member, and a ball freely mounted to rotate in any direction and to any extent within said central spherical member and constitutin a pivot for said disk, the'center of said all being substantially coincident with the center of said spherical member.

3. A disk meter having, in combination, a

gyratory measuring disk comprising a recessed spherical central member, a casing provided with recesses adapted to contain portions of said spherical member, and a pivot for said disk including a ball substantially concealed within the recess formed in said spherical member, the center of said ball being substantially coincident with the center of said spherical member and bearings for said ball in said casing and said disk respectively, said ball being .freely mounted to rotate in any direction and to any extent.

4. A disk meter having, in combination, a gyratory measuring disk comprising a recessed spherical member, a casing adapted to inclose said disk and provided with recesses lto partially contain said spherical central member, a ball constituting a pivot for said disk located within the recess formed in said cent-ral member, the center of said ball being coincident with the center of said member, a ball cup mounted in said casing and constituting a support for said disk, a second ball cup mounted in said disk to engage said ball, said second ball cup comprising a stem extending through and laterally from said central member, and mechanism adapted to be actuated by said stem during the gyratory movements of said disk.

5. A disk meter having, in combination, a gyratory measuring disk comprising a recessed spherical member, a casing adapted to inclose said disk and provided with recesses to partially contain said spherical central member, a ball located within the recess formed in said central member and In testimony whereof I have hereunto set my hand in pi-'esence of two subscribing Witnesses.

CHARLES URKEWITZ.

Witnesses CHARLES S.

GOODING; SYDNEY E.

TAFT. 

